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SEC 13F Holdings Lookup by Institutional Manager
x402
SEC 13F Holdings Lookup by Institutional Manager is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).
Retrieves the latest SEC 13F filing holdings for a named institutional fund manager (e.g. Berkshire, Bridgewater, ARK), including positions, values, weights, shares, and quarter-over-quarter changes.
Price / call$0.005
Success—
StatusUnknown
How this service works
Holdings an institutional manager reported in its latest SEC 13F (Berkshire, Bridgewater, Renaissance, ARK...): positions with value, shares and weight, total value and changes vs the previous quarter (new, increased, reduced, sold out). Search by manager name or CIK.
Output
Returns the institutional manager's name, CIK, total portfolio value in USD, filing and report dates, number of positions, and a list of top holdings each with: issuer name, CUSIP, share class, share count, USD value, portfolio weight percentage, previous quarter share count, and change type (new, increased, reduced, sold). Also includes arrays of newly added positions and fully sold-out positions.
Example use cases
Track Berkshire Hathaway portfolio changes
“Pull up Berkshire Hathaway's most recent 13F filing — I want to see all their positions, how much each is worth, what percentage of the portfolio it represents, and which stocks they added, increased, reduced, or sold completely since last quarter.”
Research ARK Invest top holdings
“What are ARK Invest's current top 20 holdings according to their latest SEC 13F? Show me the ticker, value in USD, share count, and portfolio weight for each.”
Find new positions by CIK number
“Look up the latest 13F for the fund with CIK 1037389 and tell me which positions are brand new this quarter and which ones they exited entirely.”
Technical details
Endpoint
POSThttps://api.vextorium.com/fondo-13f-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, parsed 13F portfolio data for a specific institutional manager without manually scraping SEC EDGAR. Ideal for agents that need to compare holdings quarter-over-quarter, identify position changes, or analyze top holdings for well-known funds like Berkshire, Bridgewater, Renaissance, or ARK. Prefer this over raw EDGAR access when you need clean JSON output with weights, deltas, and summaries already computed.
Side effects
- Manager name not found or ambiguous — returns null or empty result
- CIK not recognized by SEC EDGAR — returns error or no data
- 13F not yet filed for the current quarter — returns previous quarter data or null
- Rate limit or payment failure — HTTP 402 or 429 response
- Malformed body type or missing required fields — HTTP 400 validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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